White Lead ground in oil, with perhaps some linseed oil, turpentine, and little driers, will cease to be used for any engineering structure except of the meanest kind."—(Newman).

Zinc White

Zinc white, or the oxide of zinc, has been attracting attention in the past few years. The action of the French Government in requiring its use upon all public structures in preference to White Lead has doubtless, in a large measure, brought this about. However, it is a dangerous pigment to use, because, when mulled with linseed oil (especially oil containing much free fatty acid), brittle soap seems to be formed, which causes a paint made from it to lack adhesiveness, and peel or scale off. Then, again, if a dried film of  paint  made  from it